Le Forgeron <jgr### [at] freelocalhost> wrote:

> Perspective camera: have faith in the maths, for not so narrow angle, you
> have a distortion near the border: a circle is not a circle anymore!
>
> Best hint from me: Use the source for the camera ray computation and
> reverse the math for some fixed %, assuming a central position of the
> object. Or do it the caltech way...

ok, maybe I can reverse the math. But what is the "caltech way"?

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